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Tsumego 2011 April 8th
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Author:  tchan001 [ Fri Apr 08, 2011 7:11 am ]
Post subject:  Tsumego 2011 April 8th

White to kill the Black group of five stones at the top unconditionally.
Have fun.

Author:  Koroviev [ Fri Apr 08, 2011 8:17 am ]
Post subject:  Re: Tsumego 2011 April 8th

White descends to the edge, and surely the capturing race is won? Or have I missed something?

Author:  Magicwand [ Fri Apr 08, 2011 8:23 am ]
Post subject:  Re: Tsumego 2011 April 8th

Koroviev wrote:
White descends to the edge, and surely the capturing race is won? Or have I missed something?
Click Here To Show Diagram Code
[go]$$Wc Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . 3 5 . 1 6 . . |
$$ | . . . . . . . . . . . O X X X O 2 . . |
$$ | . . . . . . . . . . O . O . X O 4 . . |
$$ | . . . , . . . . . , . . . O X O O X . |
$$ | . . . . . . . . . . . . . . O X X X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Author:  Koroviev [ Fri Apr 08, 2011 8:40 am ]
Post subject:  Re: Tsumego 2011 April 8th

Magicwand wrote:
Koroviev wrote:
White descends to the edge, and surely the capturing race is won? Or have I missed something?
Click Here To Show Diagram Code
[go]$$Wc Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . 3 5 . 1 6 . . |
$$ | . . . . . . . . . . . O X X X O 2 . . |
$$ | . . . . . . . . . . O . O . X O 4 . . |
$$ | . . . , . . . . . , . . . O X O O X . |
$$ | . . . . . . . . . . . . . . O X X X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


How about this? Seems like W ends up having to make approach moves whatever happens, so Black wins the race.

Edit...actually maybe this can end up in a ko...Harder than it looks :mrgreen:

Click Here To Show Diagram Code
[go]$$Wc Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . 1 6 7 . |
$$ | . . . . . . . . . . . O X X X O 2 3 . |
$$ | . . . . . . . . . . O . O . X O 5 4 . |
$$ | . . . , . . . . . , . . . O X O O X . |
$$ | . . . . . . . . . . . . . . O X X X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Click Here To Show Diagram Code
[go]$$B9c Prisoner Count: B-0 W-0
$$ ---------------------------------------
$$ | . . . . . . . . . . . . 2 4 . O . O . |
$$ | . . . . . . . . . . . O X X X O . O 1 |
$$ | . . . . . . . . . . O . O . X O O X 3 |
$$ | . . . , . . . . . , . . . O X O O X . |
$$ | . . . . . . . . . . . . . . O X X X . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . X . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . , . . . . . , . . . . . , . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Author:  unkx80 [ Sat Apr 09, 2011 2:22 am ]
Post subject:  Re: Tsumego 2011 April 8th

Click Here To Show Diagram Code
[go]$$Wc
$$ --------------------
$$ . . . . . . 3 . . . |
$$ . . O X X X O 1 2 . |
$$ . O . O . X O . . . |
$$ , . . . O X O O X . |
$$ . . . . . O X X X . |
$$ . . . . . . . . . . |
$$ . . . . . . X . . . |
$$ . . . . . . . . . . |[/go]

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